Joseph connee and geoege matthews



(No Model.)

J. OONNER & G. MATTHEWS, Jr.

SAFETY GAP FOR GAS GENERATORS FOR SODA WATER MACHINES.

No. 328,008. Patented Oct 13, 1885.

c, I! I I f 1 J AZTORNEYS.

UNITED ST TES PATENT OFFIC JOSEPH GONNER AND GEORGE MATTHEWS, JR., OF NEW YORK, N. Y., ASSIGHORS To TH EIRM OF JOHN MATTHEWS, OF SAME PLACE.

,SAFETY-CAP FOli GAS-GENERATORS FOR SODA-WATER MACHINES.

SPECIFICATION forming part of Letters Patent No. 328,008, datedOctober 13, 188 5.

Applicationfile'd March 30, 1885. Serial No.160,545. (No model.)

To aZZwhom it may concern: 1

Be it known that we, JOSEPH GONNER and GEORGE MATTHEWS, Jr., both residents of New York city, in the county and State of New'York, have jointly invented an Improved 1 ters Patent No. 138,171, granted to John Mat thews April 22, 1873. In that patent the disks wereheld in the'cap by a nut that was screwed into the cap'from below, said nut also resting. on the edge of the bung-piece, so as to constitute a sort of washer. One difficulty with that structure was that it would at times happen that the nut would become cemented fast to the upper. edge ofthe bung-piece, so that in unscrewing the cap, whenever that was done, the nut would also, to a greater or less extent, be screwed down in the cap, thereby loosening the disks, and unless this was particularly noticed this loosening of thedisks would, when afterward the cap was reapplied, cause the gas to escape from the generator and spoil the charge.

Our invention seeks to overcome this difficult and it consists, principally, as compared wit the former patent, in extending the nut that was shown in the other patent downward,

andmaking it a coupling for joining the cap to the bung-piece, instead of joining the cap directly to the bung-piece,and having the nut as a separate piece therein.

In the drawings, the letter A represents the bung-piece, or other tubular projection. of a generator or analogous strong vessel. To the upper or vo uter part of this bung-piece is attached a tubular coupling-piece, B, which has a shoulder, a, that bears on the upper end of the bung-piece, a suitable packing being in terposed. The coupling-piece B alsohas an upper face, b, on which the disks 0, which are described in the former patent, rest.

, D is the cap, which is screwed into or around the coupling-piece B, as in Figs. 1 and 2, and

which, by its lower face, d, rests on the disks.

0, thereby clamping them against. the coupling-piece. The cap D is perforated on the upper portion to allow the gas to escape, should, by undue pressure inthe generator,

the disks C have been burst. The cap D should be of polygonal form, as shown in Fig. 3, so that it can be turned by applying a proper wrench to it, and the coupling-piece B should also have a polygonal exterior, so that a wrench may be applied to it rrhen it is desired to unfasten it from the bung-piece.

It will be seen that if the coupling-piece B is unscrewed from the bu ig-piece the relative positions of the parts B O D will not be interfered with, so that if afterward the couplingpiece B is reapplied to the bung the parts 0 D will be in their proper position without requiring special attention. If, however, the disks are to be changed: or inspected the cap D is unscrewed, thereby immediately laying tact-faces a b, and with; the bung-piece A, to

which said coupling-piece is adapted to be attached, as described.

JOSEPH GONNER. GEORGE MATTHEWS, JR.-

Witnesses: CHAS. H.'KNowLToN, OHARL sG. M. THOMAS. 

